Wireless charging method and related device

Abstract

The invention provides a wireless charging method and a related device, and relates to the technical field of wireless charging. The method can comprise the steps of detecting whether an NFC card is placed on a charging panel of the wireless charging equipment or not based on image information collected by a camera in a vehicle under the condition that the wireless charging equipment is in an on state, and obtaining a first detection result; detecting whether an NFC card is placed on the charging panel or not through the wireless charging device under the condition that the target device is determined to be placed on the charging panel, and obtaining a second detection result; wherein the target device is a device which can be wirelessly charged through the wireless charging device; and determining whether to wirelessly charge the target equipment according to the first detection result and the second detection result. According to the technical scheme provided by the invention, the problem that the NFC card is burnt out due to the fact that the NFC card is arranged between the charging panel of the wireless charging equipment and the charged equipment in the prior art can be solved.

Description

Technical Field

[0001] The present application relates to the field of wireless charging technology, specifically, to the field of vehicle-mounted wireless charging technology, and more particularly to a wireless charging method and related devices. Background Art

[0002] With the development of science and technology, Near Field Communication (NFC) technology is gradually being applied in the vehicle industry. One of the main applications of NFC technology in vehicles is the keyless unlocking system. Users can unlock the vehicle by placing the NFC card close to the NFC sensing area, which improves the convenience of vehicle use. With the development of electronic technology, more and more electronic devices have wireless charging functions. At present, some vehicles usually install wireless charging devices in the armrest box, center console and other locations in the vehicle cabin to wirelessly charge such electronic devices.

[0003] For convenience or other driving needs, the driver may place the NFC card on the charging panel of the wireless charging device in the car. When the charged device is wirelessly charged, if the NFC card is placed between the charging panel and the charged device, the NFC card is at risk of burning, affecting the user's use of the NFC card. Summary of the invention

[0004] Based on the above-mentioned defects and shortcomings of the prior art, the present application proposes a wireless charging method and related aspects, which can solve the problem in the prior art that the NFC card is burned due to being placed between the charging panel of the wireless charging device and the charged device.

[0005] According to a first aspect of an embodiment of the present application, there is provided a wireless charging method, which is applied to a vehicle, wherein a wireless charging device is provided in the vehicle;

[0006] The method comprises:

[0007] When the wireless charging device is in the turned-on state, based on the image information collected by the in-vehicle camera, detecting whether an NFC card is placed on the charging panel of the wireless charging device to obtain a first detection result; wherein the image information collected by the in-vehicle camera includes the charging panel;

[0008] When it is determined that the target device is placed on the charging panel, the wireless charging device detects whether an NFC card is placed on the charging panel to obtain a second detection result; wherein the target device refers to a device that can be wirelessly charged by the wireless charging device;

[0009] Determine whether to perform wireless charging on the target device according to the first detection result and the second detection result.

[0010] According to a second aspect of an embodiment of the present application, there is provided a wireless charging device, which is applied to a vehicle, wherein the vehicle is provided with the wireless charging device;

[0011] The device comprises:

[0012] A first detection module is used to detect whether an NFC card is placed on the charging panel of the wireless charging device based on image information collected by an in-vehicle camera when the wireless charging device is in an on-state, and obtain a first detection result; wherein the image information collected by the in-vehicle camera includes the charging panel;

[0013] A second detection module is used to detect whether an NFC card is placed on the charging panel by the wireless charging device when it is determined that the target device is placed on the charging panel, so as to obtain a second detection result; wherein the target device refers to a device that can be wirelessly charged by the wireless charging device;

[0014] A decision module is used to determine whether to wirelessly charge the target device according to the first detection result and the second detection result.

[0015] According to a third aspect of an embodiment of the present application, a vehicle is provided, the vehicle comprising: a domain controller, an in-vehicle camera and a wireless charging device respectively communicating with the domain controller;

[0016] The in-vehicle camera is used to collect image information when the wireless charging device is in an on state, and send the image information to the domain controller; wherein the image information includes the charging panel of the wireless charging device;

[0017] The domain controller is used to detect whether an NFC card is placed on the charging panel based on the received image information, obtain a first detection result, and send the first detection result to the wireless charging device;

[0018] The wireless charging device is used to detect whether an NFC card is placed on the charging panel when it is determined that the target device is placed on the charging panel, and obtain a second detection result; and determine whether to wirelessly charge the target device based on the first detection result and the second detection result; wherein the target device refers to a device that can be wirelessly charged by the wireless charging device.

[0019] According to a fourth aspect of the embodiments of the present application, there is provided an electronic device, including: a memory and a processor;

[0020] The memory is connected to the processor and is used to store programs;

[0021] The processor is used to implement the wireless charging method as described in the first aspect by running the program in the memory.

[0022] According to a fifth aspect of the embodiments of the present application, a storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the wireless charging method as described in the first aspect is implemented.

[0023] According to a sixth aspect of the embodiments of the present application, a computer program product or a computer program is provided, wherein the computer program product includes the computer program, and when the processor executes the computer program, the steps in the wireless charging method as described in the first aspect are implemented. Optionally, the computer program can be stored in a readable storage medium or in the cloud of a computer device; the processor of the computer device reads the computer program from the readable storage medium or the cloud.

[0024] In the technical solution provided by the present application, based on image detection and wireless charging device detection, it is determined whether an NFC card is placed on the charging panel of the wireless charging device, thereby determining whether to wirelessly charge the target device. By performing NFC card detection in a variety of ways, the probability of NFC card missed detection can be reduced, the failure rate of NFC card protection function can be reduced, and the security of NFC cards can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of an NFC antenna outbound scenario of a wireless charging device provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of a wireless charging method provided in an embodiment of the present application;

[0028] Figure 3 A block diagram of a wireless charging device provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] Application Overview

[0032] One of the main applications of NFC technology in vehicles is the keyless unlocking system. When a user places an NFC card close to the NFC sensing area (such as the door handle of a car), the vehicle can be unlocked, which improves the convenience of vehicle use and enhances the user experience.

[0033] For the convenience of taking or other driving needs, the NFC card may be placed on the charging panel of the wireless charging device in the car. The wireless charging device is generally set in the armrest box or center console. After entering the car, the driver may place the NFC card on the charging panel. For another example, when the driver enters the car for more than a certain period of time without shifting gears, the NFC card detection is required when stepping on the brake to shift gears. The detection method is to place the NFC card on the charging panel and detect it through the wireless charging device.

[0034] In actual application, drivers sometimes ignore the NFC card placed on the charging panel and place the electronic device to be charged (such as a mobile phone, etc.) directly on the charging panel for wireless charging, resulting in the NFC card being placed between the electronic device to be charged and the charging panel. Since wireless charging is achieved through high-power electromagnetic transmission of the sending and receiving coils at close range, when wireless charging is performed on the electronic device, the NFC card with a coil will also absorb the magnetic field. However, since the NFC card does not have a battery or other similar storage structure, the coil and chip in the NFC card will heat up. When the heat accumulates to a certain extent, the NFC card will be burned.

[0035] In order to reduce the occurrence of such situations, existing wireless charging devices are generally equipped with a card protection function. The NFC card can communicate with the wireless charging device based on the field strength of the NFC antenna of the wireless charging device. If the wireless charging device detects the NFC card based on this communication, it will not wirelessly charge the electronic device to avoid burning the NFC card, thereby realizing the card protection function.

[0036] Figure 1 The NFC antenna of the wireless charging device is shown in FIG. 1. The NFC antenna 101 of the wireless charging device is arranged inside the wireless charging device, and can be embedded in the integrated circuit board inside the wireless charging device. The charging panel 102 of the wireless charging device is located above the NFC antenna 101. Figure 1It can be seen that the field strength 103 above the charging panel 102 is unevenly distributed, and the closer to the center of the NFC antenna 101, the stronger the field strength 103 is, and vice versa. When the NFC card is placed at the edge of the charging panel, or the magnetic flux passing through the coil in the NFC card is small due to being placed horizontally relative to the charging panel, the probability of the wireless charging device detecting the NFC card will also decrease, and the risk of the card protection function failing will also increase.

[0037] In order to solve the above problems, the embodiment of the present application provides a wireless charging technology, which determines whether an NFC card is placed on the charging panel of the wireless charging device based on image detection and wireless charging device detection, thereby determining whether to charge the target device. By performing NFC card detection in multiple ways, the probability of NFC card missed detection can be reduced, the failure rate of card protection function can be reduced, and the security of NFC cards can be improved.

[0038] Exemplary Methods

[0039] An embodiment of the present application provides a wireless charging method, which is applied to a vehicle. A wireless charging device is provided in the vehicle. The wireless charging device includes a charging panel. The charging panel is used to place a charged device to wirelessly charge the charged device.

[0040] The method is described in detail below through some embodiments. The following embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0041] like Figure 2 As shown, the method may include steps 201 to 203, as described below:

[0042] Step 201: When the wireless charging device is turned on, based on image information collected by an in-vehicle camera, detect whether an NFC card is placed on the charging panel to obtain a first detection result.

[0043] Among them, the image information collected by the in-car camera includes the charging panel of the wireless charging device.

[0044] In the embodiment of the present application, when the wireless charging device is turned on, an image including the charging panel can be collected by the in-vehicle camera, and based on the collected image and image recognition technology, it is determined whether an NFC card is placed on the charging panel. The charging panel image included in the image information should be a complete image of the charging panel, or a partial image that does not affect the detection of the NFC card.

[0045] The first detection result described here is used to indicate that an NFC card is placed on the charging panel, or is used to indicate that an NFC card is not placed on the charging panel.

[0046] Optionally, the in-car camera described here can be a dedicated camera for NFC card protection, that is, dedicated to the image acquisition of the charging panel; the in-car camera can also be a camera in the occupancy monitoring system (OMS). It is understandable that if the camera of the driver monitoring system (DMS) can capture the image of the driver and the image of the charging panel at the same time, the in-car camera can also be the camera in the driver monitoring system.

[0047] Step 202: When it is determined that the target device is placed on the charging panel, the wireless charging device is used to detect whether an NFC card is placed on the charging panel to obtain a second detection result.

[0048] The target device mentioned here refers to a device that can be wirelessly charged by the wireless charging device, such as a mobile phone that matches the wireless charging device.

[0049] For wireless charging, the Wireless Power Consortium (WPC) provides a wireless charging protocol, namely the Qi protocol. The Qi protocol includes a security authentication mechanism that requires device authentication between the wireless charging device and the device to be charged. During the device authentication process, the coil in the wireless charging device can transmit a pulse signal for handshake. After the coil in the device to be charged receives the pulse signal, it can return a corresponding identification signal to the wireless charging device. The identification signal includes information such as signal strength, received power, charging status, and private protocol. After the wireless charging device successfully shakes hands with the device to be charged based on the identification signal, it can charge the device to be charged. Through such a security authentication mechanism, users can be provided with a safer and more reliable wireless charging experience, while ensuring the compatibility and interoperability of devices, and helping to prevent safety risks that may arise from using non-certified wireless chargers, such as device damage or overheating.

[0050] The wireless charging device can determine whether the device placed on its charging panel is the target device based on the security authentication mechanism, that is, whether there is a device on the charging panel that can be charged by it. Of course, the wireless charging device can also identify the target device through other feasible means, which is not specifically limited in this application.

[0051] The NFC card can communicate with the wireless charging device based on the field strength of the NFC antenna of the wireless charging device. The wireless charging device can determine whether an NFC card is placed on the charging panel based on this communication relationship to obtain a second detection result. The second detection result is used to indicate that an NFC card is placed on the charging panel, or to indicate that an NFC card is not placed on the charging panel.

[0052] For example, when the user places the mobile phone on the charging panel, the wireless charging device turns on the NFC antenna to scan the NFC card. The opening time for each time can be 50ms, and then scans 5 times in succession to detect whether there is an NFC card on the charging panel. If the communication between the wireless charging device and the NFC card is successful, and it is determined that an NFC card is placed on the charging panel, a second detection result is generated to indicate that an NFC card is placed on the charging panel; conversely, if the communication between the wireless charging device and the NFC card fails, and it is determined that no NFC card is placed on the charging panel, a second detection result is generated to indicate that no NFC card is placed on the charging panel. It should be noted that this is only an example, and the opening time and scanning times of the NFC antenna each time are not limited to the values ​​shown in the above example, and can be set according to actual needs.

[0053] Step 203: Determine whether to wirelessly charge the target device according to the first detection result and the second detection result.

[0054] In the embodiment of the present application, it is possible to detect whether there is NFC on the charging panel of the wireless charging device in a variety of ways, such as detection based on image recognition technology and detection based on a wireless charging safety authentication mechanism. Afterwards, by combining the detection results of the various methods (such as the first detection result and the second detection result), it is determined whether to perform wireless charging on the target device, so that the accuracy of NFC card detection can be improved and the risk of failure of the NFC card protection function can be reduced.

[0055] In some optional embodiments, step 203: determining whether to wirelessly charge the target device according to the first detection result and the second detection result may include:

[0056] Step A1: When at least one of the first detection result and the second detection result indicates that an NFC card is placed on the charging panel, wireless charging of the target device is prohibited.

[0057] In the case where an NFC card is detected on the charging panel based on image information, and / or, in the case where an NFC card is detected on the charging panel through a wireless charging device, it means that there is a high probability that an NFC card is placed on the charging panel. At this time, if the target device is wirelessly charged, the NFC card will have the risk of being burned. Therefore, wireless charging of the target device is prohibited in this case to protect the NFC card. At the same time, the vehicle can also output prompt information to prompt the user to confirm whether an NFC card is placed on the charging panel, and in some cases, remove the NFC card from the charging panel and prompt the risks of not removing the NFC card. Among them, the prompt information can be displayed on the central control screen or the voice prompt information can be output, and the specific prompt method can be designed according to actual needs.

[0058] Optionally, when prompting the user to confirm whether an NFC card is placed on the charging panel, a first option and a second option may be provided to the user, the first option being used to provide feedback to the vehicle that an NFC card is placed on the charging panel; the second option being used to provide feedback to the vehicle that an NFC card is not placed on the charging panel. For example, the first option is "yes" and the second option is "no".

[0059] When the vehicle receives feedback that an NFC card is placed on the charging panel due to the triggering of the first option, the image detection mechanism can be triggered to detect whether the user has removed the NFC card from the charging panel. If the removal is detected, the target device will start to be charged; if it is detected that the NFC card has not been removed within a period of time, a prompt message will be output. The vehicle can also optimize the strategy of image detection of NFC cards or the strategy of wireless charging device detection of NFC cards based on the feedback. For example, in this case, if the first detection result indicates that the NFC card is not placed on the charging panel, it means that the image detection method has a false detection. In this case, the image detection strategy can be optimized in combination with the historically collected images to improve the accuracy of image detection. Similarly, in this case, if the second detection result indicates that the NFC card is not placed on the charging panel, the strategy of wireless charging device detection of NFC cards is optimized.

[0060] When the vehicle receives feedback that no NFC card is placed on the charging panel due to the triggering of the second option, the strategy of detecting NFC cards by images and / or the strategy of detecting NFC cards by wireless charging devices can also be optimized.

[0061] Step A2: When both the first detection result and the second detection result indicate that no NFC card is placed on the charging panel, wireless charging of the target device is allowed.

[0062] When no NFC card is detected on the charging panel based on the image information, and / or when no NFC card is detected on the charging panel by the wireless charging device, it means that there is a high probability that no NFC card is placed on the charging panel. In this case, wireless charging of the target device is allowed.

[0063] In some optional embodiments, step 201: based on the image information collected by the in-vehicle camera, detecting whether an NFC card is placed on the charging panel to obtain a first detection result may include step B1 and step B2, as described below:

[0064] Step B1: Based on the image information collected by the in-vehicle camera, detect in real time or periodically whether an NFC card is placed on the charging panel.

[0065] In the embodiment of the present application, based on the image information collected by the camera in the car, it is possible to detect in real time or regularly (i.e. periodically) whether an NFC card is placed on the charging panel, and record the detection results obtained by each detection. If the results of the two previous and subsequent detections are inconsistent, the latest detection result shall prevail. If the results of the two previous and subsequent detections are consistent, the detection results shall remain unchanged.

[0066] For example, if the detection result of the previous detection cycle is that there is no NFC card placed on the charging panel, and the detection result of the next detection cycle is that there is an NFC card placed on the charging panel, the detection result is updated and the detection result of the next detection cycle is used as the standard. If the detection result of the next detection cycle is still that there is no NFC card placed on the charging panel, the detection result remains unchanged.

[0067] Step B2: When the wireless charging device detects that the target device is placed on the charging panel, stop detecting whether an NFC card is placed on the charging panel based on the image information, and use the most recent detection result obtained based on the image information collected by the in-vehicle camera as the first detection result.

[0068] When the target device is placed on the charging panel, it is highly likely that part or all of the NFC card will be blocked, making it difficult to determine whether an NFC card is placed on the charging panel based on the image information. The accuracy of the detection result is reduced, and misjudgment events are prone to occur. Therefore, in this case, the detection based on the image information to determine whether an NFC card is placed on the charging panel can be stopped, and the most recent detection result based on the image information before the wireless charging device detects that the target device is placed on the charging panel can be used as the first detection result.

[0069] Among them, when the wireless charging device detects that the target device is placed on the charging panel, the occurrence time of the event can be recorded. Then, based on the occurrence time, the most recent detection result based on the image information before this event can be determined. For example, the occurrence time can be used as a reference time, and the most recent detection result based on the image information before the occurrence time is the first detection result; it can be understood that the wireless charging device also needs a certain amount of time to detect the target device, so it is also possible to determine a reference time earlier than the occurrence time based on the occurrence time, and then the most recent detection result based on the image information before the reference time is the first detection result. Optionally, the reference time can be determined based on the time required for the wireless charging device to detect the target device.

[0070] In some optional embodiments, when detecting whether an NFC card is placed on the charging panel based on image information, it is possible to detect whether an object matching the characteristic information of the NFC card is placed on the charging panel, thereby determining whether an NFC card is placed on the charging panel; it is also possible to determine whether an NFC card is placed on the charging panel based on the placement action, removal action, etc. of the NFC card, as described in detail as follows:

[0071] In step 201, “detecting whether an NFC card is placed on the charging panel based on the image information collected by the in-vehicle camera” may include:

[0072] When the placement action of an NFC card is detected based on the image information, it is determined that an NFC card is placed on the charging panel, and the placement action mentioned here refers to the action of placing the NFC card on the charging panel; or, when an object matching the characteristic information of the NFC card is detected on the charging panel based on the image information, it is determined that an NFC card is placed on the charging panel; the characteristic information of the NFC card mentioned here includes but is not limited to at least one of the following: shape, size, color, etc.

[0073] When it is detected based on the image information that there is no object on the charging panel that matches the characteristic information of the NFC card, it is determined that no NFC card is placed on the charging panel; or, when the removal action of the NFC card is detected based on the image information, it is determined that no NFC card is placed on the charging panel, and the removal action mentioned here refers to the action of removing the NFC card from the charging panel.

[0074] Optionally, when detecting whether an object matching the characteristic information of the NFC card is placed on the charging panel, a target detection algorithm can be used to perform target detection on the image captured by the in-vehicle camera to determine whether an object matching the characteristic information of the NFC card is placed on the charging panel.

[0075] The target detection algorithm can be a traditional target detection algorithm, such as a sliding window-based region selection, feature extraction (such as extracting scale-invariant feature transform (SIFT) features) and a classifier (such as a support vector machine (SVM)); or it can be a target detection algorithm based on deep learning, such as a pre-trained deep learning model. For the latter, the image captured by the in-car camera can be used as input data and input into the deep learning model, which then detects the NFC card.

[0076] It is understandable that, when determining whether an NFC card is placed on the charging panel based on the placement action, removal action, etc. of the NFC card, it is also possible to detect whether the action operation object is an NFC card based on the target detection algorithm, that is, whether the placement or removal object is an NFC card. If the action operation object is an NFC card, it is further determined whether the NFC card is placed or removed. For example, at first, it is detected based on the image information that there is no NFC card on the charging panel, and then, when the action of placing the NFC card on the charging panel from far to near is detected, it can be considered that an NFC card is placed on the charging panel; similarly, when it is detected based on the image information that an NFC card is placed on the charging panel, and then, when the action of taking the NFC card away from the charging panel by hand from near to far is detected, it can be considered that there is no NFC card on the charging panel.

[0077] In some optional embodiments, step 201: based on the image information collected by the in-vehicle camera, detecting whether an NFC card is placed on the charging panel to obtain a first detection result may include step C1 and step C3, as described below:

[0078] Step C1: Based on the image information collected by the in-vehicle camera, detect in real time or periodically whether an NFC card is placed on the charging panel.

[0079] Step C2: When the wireless charging device detects that the target device is placed on the charging panel, if an NFC card is detected on the charging panel based on the image information collected by the in-vehicle camera before, stop detecting whether an NFC card is placed on the charging panel based on the image information, and use the most recent detection result obtained based on the image information collected by the in-vehicle camera before as the first detection result.

[0080] Step C3: When the wireless charging device detects that the target device is placed on the charging panel, if the image information collected by the in-vehicle camera has not detected that an NFC card is placed on the charging panel before, continue to detect whether an NFC card is placed on the charging panel based on the image information.

[0081] The NFC card and the target device may be placed on the charging panel together. In this case, the NFC card cannot be detected through the image information collected by the in-car camera before the target device is placed on the charging panel; or the time interval between the NFC card and the target device being placed on the charging panel is short, so that it is difficult to capture the NFC card through the in-car camera before the target device is placed on the charging panel. Therefore, when it is detected that the target device is placed on the charging panel, if the NFC card is not detected on the charging panel based on the image information collected by the in-car camera before this, it is possible to continue to detect whether the NFC card is placed on the charging panel based on the image information to avoid missed detection.

[0082] In this case, the NFC card is most likely in an obstructed state, but the characteristics between the target device and the NFC card are obviously different. Combining the overall characteristics of the NFC card with the local characteristics at different positions, when the NFC card is not completely blocked, the NFC card can still be detected based on the image information collected by the in-car camera.

[0083] In some optional embodiments, after determining that wireless charging of the target device is prohibited based on the first detection result and the second detection result, the method may further include:

[0084] When the removal of the NFC card is detected based on the image information collected by the in-vehicle camera, wireless charging of the target device begins.

[0085] In an embodiment of the present application, in order to avoid the risk of burning through the NFC card, after prohibiting wireless charging of the target device, if it is detected based on image information collected by the in-vehicle camera that the NFC card is removed from the charging interface, wireless charging of the target device can be started to ensure the charging needs of the target device.

[0086] In some optional embodiments, when it is determined based on the first detection result and the second detection result that wireless charging of the target device is allowed, during the process of wirelessly charging the target device, the method may further include:

[0087] When it is detected that the temperature of the charging panel is greater than the temperature threshold, wireless charging of the target device is stopped.

[0088] During the process of the wireless charging device wirelessly charging the target device, since the energy conversion efficiency is not 100%, part of the electrical energy will be converted into heat energy, causing the charging panel and the target device to heat up. However, in this case, the temperature of the charging panel and the target device has a certain upper limit, such as 50°C. If this upper limit is exceeded, it means that an abnormal situation has occurred. At this time, the wireless charging of the target device can be stopped to avoid more serious consequences.

[0089] For example, due to errors in detecting NFC cards by images and wireless charging devices, the NFC card placed on the charging panel is not detected, which results in the target device being charged when the NFC card is between the charging panel and the target device, which in turn causes the NFC card to continue to heat up, so that the temperature of the charging panel exceeds the normal temperature range. At this time, the wireless charging of the target device can be stopped to avoid more serious consequences. At the same time, the user can also be prompted to detect whether there is an NFC card placed on the charging panel.

[0090] For another example, if there are metal foreign objects, such as coins, keys, etc., placed between the charging panel and the target device, the metal foreign objects will also generate heat when the wireless charging device is charging the target device, which may cause damage to the charging panel and the target device. Therefore, stopping charging the target device at this time can protect the charging panel and the target device.

[0091] The temperature threshold can be set based on the normal temperature range of the charging panel, the ignition temperature of the NFC card, the melting point temperature of the target device housing, etc. For example, a temperature value greater than the maximum value of the normal temperature of the charging panel and less than the ignition temperature of the NFC card is used as the temperature threshold.

[0092] In some optional embodiments, the domain controller (such as a cockpit domain controller) can detect whether the wireless charging device is turned on, and control the in-vehicle camera to collect image information when it is detected that the wireless charging device is turned on.

[0093] The in-car camera can transmit the collected image information to a domain controller (such as a cockpit domain controller) through a low-voltage differential signal (LVDS). The domain controller detects whether an NFC card is placed on the charging panel based on the received image information.

[0094] Afterwards, the domain controller transmits the first detection result to the wireless charging device through the CAN bus.

[0095] Finally, the wireless charging device determines whether to perform wireless charging on the target device based on the first detection result and the second detection result.

[0096] It is understandable that the wireless charging device can also send the second detection result to the domain controller, and the domain controller determines whether to wirelessly charge the target device based on the first detection result and the second detection result, and then sends the result of whether to charge to the wireless charging device.

[0097] In summary, the wireless charging method provided in the embodiment of the present application determines whether there is an NFC card on the charging panel of the wireless charging device based on image detection and wireless charging device detection, thereby determining whether to charge the target device. By performing NFC card detection in multiple ways, the probability of NFC card missed detection can be reduced, the failure rate of the card protection function can be reduced, and the security of NFC cards can be improved.

[0098] Exemplary Devices

[0099] Correspondingly, an embodiment of the present application further provides a wireless charging device, which is applied to a vehicle, and the vehicle is provided with the wireless charging device.

[0100] like Figure 3 As shown, the device may include:

[0101] The first detection module 301 is used to detect whether an NFC card is placed on the charging panel of the wireless charging device based on image information collected by an in-vehicle camera when the wireless charging device is in an on state, and obtain a first detection result; wherein the image information collected by the in-vehicle camera includes the charging panel.

[0102] The second detection module 302 is used to detect whether an NFC card is placed on the charging panel by the wireless charging device when it is determined that the target device is placed on the charging panel, so as to obtain a second detection result; wherein the target device refers to a device that can be wirelessly charged by the wireless charging device.

[0103] The decision module 303 is used to determine whether to wirelessly charge the target device according to the first detection result and the second detection result.

[0104] Optionally, the decision module 303 may be specifically used for:

[0105] When at least one of the first detection result and the second detection result indicates that an NFC card is placed on the charging panel, it is determined that wireless charging of the target device is prohibited.

[0106] When both the first detection result and the second detection result indicate that no NFC card is placed on the charging panel, it is determined that wireless charging of the target device is allowed.

[0107] Optionally, the first detection module 301 may be specifically used for:

[0108] When the placement action of the NFC card is detected based on the image information, it is determined that an NFC card is placed on the charging panel; wherein the placement action refers to the action of placing the NFC card on the charging panel; or, when an object matching the characteristic information of the NFC card is detected on the charging panel based on the image information, it is determined that an NFC card is placed on the charging panel.

[0109] Optionally, the first detection module 301 may also be specifically configured to:

[0110] When it is detected based on the image information that there is no object on the charging panel that matches the characteristic information of the NFC card, it is determined that no NFC card is placed on the charging panel; or, when the removal action of the NFC card is detected based on the image information, it is determined that no NFC card is placed on the charging panel; wherein the removal action refers to the action of removing the NFC card from the charging panel.

[0111] Optionally, the first detection module 301 may be specifically used for:

[0112] Based on the image information collected by the in-vehicle camera, whether an NFC card is placed on the charging panel is detected in real time or periodically; when the wireless charging device detects that the target device is placed on the charging panel, stop detecting whether an NFC card is placed on the charging panel based on the image information, and use the most recent detection result based on the image information before this as the first detection result.

[0113] Optionally, the device may further include:

[0114] The charging module is used to start wireless charging of the target device if the removal of the NFC card is detected based on image information collected by the in-vehicle camera after the wireless charging of the target device is prohibited based on the first detection result and the second detection result.

[0115] Optionally, the decision module 303 may also be used to: during the process of charging the target device, if it is detected that the temperature of the charging panel is greater than a temperature threshold, stop wireless charging of the target device.

[0116] The wireless charging device provided in this embodiment belongs to the same application concept as the wireless charging method provided in the above embodiments of this application, and can execute the wireless charging method provided in any of the above embodiments of this application, and has the corresponding functional modules and beneficial effects of the execution method. For technical details not fully described in this embodiment, please refer to the specific processing content of the wireless charging method provided in the above embodiments of this application, and will not be repeated here.

[0117] Example Vehicles

[0118] An embodiment of the present application also provides a vehicle, which includes: a domain controller, an in-vehicle camera and a wireless charging device that respectively establish communication connections with the domain controller.

[0119] In one embodiment, the in-vehicle camera is used to collect image information when the wireless charging device is in an on state, and send the image information to a domain controller; wherein the image information includes a charging panel of the wireless charging device.

[0120] The domain controller is used to detect whether an NFC card is placed on the charging panel of the wireless charging device based on the received image information, obtain a first detection result, and send the first detection result to the wireless charging device.

[0121] The wireless charging device is used to detect whether an NFC card is placed on the charging panel when it is determined that the target device is placed on the charging panel, and obtain a second detection result; and determine whether to wirelessly charge the target device based on the first detection result and the second detection result; wherein the target device refers to a device that can be wirelessly charged by the wireless charging device.

[0122] In another embodiment, the in-vehicle camera is used to collect image information when the wireless charging device is in an on state, and send the image information to the domain controller; wherein the image information includes the charging panel of the wireless charging device.

[0123] The domain controller is used to detect whether an NFC card is placed on the charging panel of the wireless charging device based on the received image information, and obtain a first detection result.

[0124] The wireless charging device is used to detect whether an NFC card is placed on the charging panel when it is determined that the target device is placed on the charging panel, and obtain a second detection result; and send the second detection result to the domain controller; wherein the target device refers to a device that can be wirelessly charged by the wireless charging device.

[0125] The domain controller is also used to determine whether to wirelessly charge the target device based on the first detection result and the second detection result, and then send an indication message to the wireless charging device. The indication message is used to indicate that the target device is wirelessly charged, or is used to indicate that the target device is not wirelessly charged.

[0126] The wireless charging device is also used to wirelessly charge the target device or not wirelessly charge the target device based on the received indication information.

[0127] The vehicle provided in this embodiment belongs to the same application concept as the wireless charging method provided in the above embodiments of this application, and can execute the wireless charging method provided in any of the above embodiments of this application, and has the corresponding functional modules and beneficial effects of the execution method. For technical details not fully described in this embodiment, please refer to the specific processing content of the wireless charging method provided in the above embodiments of this application, and will not be repeated here.

[0128] Exemplary Electronic Devices

[0129] The present application also provides an electronic device, such as Figure 4 As shown, the electronic device includes: a memory 400 and a processor 410 .

[0130] The memory 400 is connected to the processor 410 and is used to store programs.

[0131] The processor 410 is used to implement the wireless charging method in the above embodiment by running the program stored in the memory 400 .

[0132] Specifically, the electronic device may further include: a communication interface 420 , an input device 430 , an output device 440 and a bus 450 .

[0133] The processor 410, the memory 400, the communication interface 420, the input device 430 and the output device 440 are connected to each other via a bus.

[0134] Bus 450 may include a pathway for transferring information between the various components of the computer system.

[0135] Processor 410 may be a general purpose processor, such as a general purpose central processing unit (CPU), a microprocessor, etc., or an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the scheme of the present invention. It may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0136] The processor 410 may include a main processor, and may also include a baseband chip, a modem, and the like.

[0137] The memory 400 stores a program for executing the technical solution of the present invention, and may also store an operating system and other key services. Specifically, the program may include a program code, and the program code includes a computer operation instruction. More specifically, the memory 400 may include a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a random access memory (RAM), other types of dynamic storage devices that can store information and instructions, a disk storage, a flash, and the like.

[0138] The input device 430 may include a device for receiving data and information input by a user, such as a keyboard, a mouse, a camera, a scanner, a light pen, a voice input device, a touch screen, a pedometer, or a gravity sensor.

[0139] Output device 440 may include a device that allows information to be output to a user, such as a display screen, a printer, a speaker, etc.

[0140] The communication interface 420 may include any transceiver or the like to communicate with other devices or communication networks, such as Ethernet, a radio access network (RAN), a wireless local area network (WLAN), etc.

[0141] The processor 410 executes the program stored in the memory 400 and calls other devices, which can be used to implement each step of the wireless charging method provided in the above embodiment of the present application.

[0142] Exemplary computer program products and storage media

[0143] In addition to the above-mentioned method and device, the embodiment of the present application may also be a computer program product, which includes computer program instructions, which, when executed by a processor, enable the processor to execute the steps in the wireless charging method described in the embodiment of the present application.

[0144] The computer program product may be implemented in hardware, software or a combination thereof. In one optional embodiment, the computer program product is embodied as a computer storage medium, and in another optional embodiment, the computer program product is embodied as a software product, such as a software development kit (SDK).

[0145] The computer program product may be written in any combination of one or more programming languages ​​to write program codes for performing the operations of the embodiments of the present application, including object-oriented programming languages, such as Java, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as an independent software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0146] In addition, an embodiment of the present application may also be a storage medium on which a computer program is stored, and the computer program is executed by a processor to execute the steps of the wireless charging method described in the embodiment of the present application.

[0147] In addition, the embodiment of the present application may also be a chip, which includes a processor and a data interface. The processor reads instructions stored in the memory through the data interface to execute the steps in the point of interest query method described in the embodiment of the present application.

[0148] For the aforementioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the order of the actions described, because according to the present application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0149] It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0150] The steps in the methods of each embodiment of the present application can be adjusted in order, combined and deleted according to actual needs, and the technical features recorded in each embodiment can be replaced or combined.

[0151] The modules and sub-modules in the devices and terminals in the embodiments of the present application can be combined, divided and deleted according to actual needs.

[0152] In the several embodiments provided in the present application, it should be understood that the disclosed terminals, devices and methods can be implemented in other ways. For example, the terminal embodiments described above are only schematic, for example, the division of modules or submodules is only a logical function division, and there may be other division methods in actual implementation, for example, multiple submodules or modules can be combined or integrated into another module, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or modules, which can be electrical, mechanical or other forms.

[0153] The modules or submodules described as separate components may or may not be physically separated, and the components of the modules or submodules may or may not be physical modules or submodules, that is, they may be located in one place, or they may be distributed on multiple network modules or submodules. Some or all of the modules or submodules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0154] In addition, each functional module or submodule in each embodiment of the present application may be integrated into one processing module, or each module or submodule may exist physically separately, or two or more modules or submodules may be integrated into one module. The above-mentioned integrated modules or submodules may be implemented in the form of hardware or in the form of software functional modules or submodules.

[0155] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0156] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly by hardware, software units executed by a processor, or a combination of the two. The software units may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0157] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A wireless charging method, characterized in that: Applied to a vehicle, wherein the vehicle is provided with a wireless charging device; The method comprises: When the wireless charging device is in the turned-on state, based on the image information collected by the in-vehicle camera, detecting whether an NFC card is placed on the charging panel of the wireless charging device to obtain a first detection result; wherein the image information collected by the in-vehicle camera includes the charging panel; When it is determined that the target device is placed on the charging panel, the wireless charging device detects whether an NFC card is placed on the charging panel to obtain a second detection result; wherein the target device refers to a device that can be wirelessly charged by the wireless charging device; Determine whether to perform wireless charging on the target device according to the first detection result and the second detection result.

2. The wireless charging method according to claim 1, characterized in that: The determining, according to the first detection result and the second detection result, whether to wirelessly charge the target device includes: If at least one of the first detection result and the second detection result indicates that an NFC card is placed on the charging panel, prohibiting wireless charging of the target device; When both the first detection result and the second detection result indicate that no NFC card is placed on the charging panel, wireless charging of the target device is allowed.

3. The wireless charging method according to claim 1 or 2, characterized in that: The detecting whether an NFC card is placed on the charging panel based on the image information collected by the in-vehicle camera includes: In the case where a placement action of an NFC card is detected based on the image information, determining that an NFC card is placed on the charging panel; wherein the placement action refers to an action of placing the NFC card on the charging panel; Or, when an object matching the characteristic information of the NFC card is detected on the charging panel based on the image information, it is determined that an NFC card is placed on the charging panel.

4. The wireless charging method according to claim 1 or 2, characterized in that: The detecting whether an NFC card is placed on the charging panel based on image information collected by the in-vehicle camera includes: In a case where it is detected based on the image information that there is no object on the charging panel that matches the characteristic information of the NFC card, determining that no NFC card is placed on the charging panel; Or, when the removal action of the NFC card is detected based on the image information, it is determined that no NFC card is placed on the charging panel; wherein the removal action refers to the action of removing the NFC card from the charging panel.

5. The wireless charging method according to claim 1 or 2, characterized in that: The detecting whether an NFC card is placed on the charging panel of the wireless charging device based on the image information collected by the in-vehicle camera to obtain a first detection result includes: Based on the image information collected by the in-vehicle camera, real-time or periodic detection is performed to determine whether an NFC card is placed on the charging panel; When the wireless charging device detects that the target device is placed on the charging panel, stop detecting whether an NFC card is placed on the charging panel based on the image information, and use the most recent detection result based on the image information before as the first detection result.

6. The wireless charging method according to claim 1 or 2, characterized in that: After determining to prohibit wireless charging of the target device based on the first detection result and the second detection result, the method further includes: When the removal action of the NFC card is detected based on the image information collected by the in-vehicle camera, wireless charging of the target device begins.

7. The wireless charging method according to claim 1 or 2, characterized in that: In a case where it is determined based on the first detection result and the second detection result that wireless charging of the target device is allowed, during the process of charging the target device, the method further includes: When it is detected that the temperature of the charging panel is greater than a temperature threshold, wireless charging of the target device is stopped.

8. A vehicle, characterized in that: The vehicle comprises: a domain controller, an in-vehicle camera and a wireless charging device respectively communicating with the domain controller; The in-vehicle camera is used to collect image information when the wireless charging device is in an on state, and send the image information to the domain controller; wherein the image information includes the charging panel of the wireless charging device; The domain controller is used to detect whether an NFC card is placed on the charging panel based on the received image information, obtain a first detection result, and send the first detection result to the wireless charging device; The wireless charging device is used to detect whether an NFC card is placed on the charging panel to obtain a second detection result when it is determined that the target device is placed on the charging panel; and to determine whether to wirelessly charge the target device based on the first detection result and the second detection result; wherein the target device refers to a device that can be wirelessly charged by the wireless charging device.

9. An electronic device, characterized in that: include: Memory and processor; The memory is connected to the processor and is used to store programs; The processor is used to implement the wireless charging method according to any one of claims 1 to 7 by running the program in the memory.

10. A computer program product, characterized in that The computer program product stores a computer program, and when the computer program is executed by a processor, the wireless charging method according to any one of claims 1 to 7 is implemented.

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